Title :
Simulation Model of Gas Migration and Hindering in Underground Tunnel Based on LBM
Author :
Lu, Qiu-qin ; Wei, Xian-gang
Author_Institution :
Sch. of Manage., Xi´´an Univ. of Archit. & Technol., Xi´´an, China
Abstract :
A simulation model of gas migration and hindering based on separated multi-component lattice Boltzmann method (LBM) is put forward in order to research gas migration and accumulation on underground tunnel and to prevent major accident in mines. The tunnel is separated into some relative regular blocks through the separated & coupled algorithm and the multi-component LBM is adopted. The gas emission sources are disposed randomly. When gas passing tunnel, the gas emission sources are propagated together with original gas flow. At the same time, the obstacles are set up randomly in tunnels. Using the gas hindering model the changing condition of direction and gas concentration is researched when the gas encountering obstacles, then a powerful tool that can control gas migration and accumulation is provided.
Keywords :
aerodynamics; flow; gases; lattice Boltzmann methods; mining; tunnels; LBM; accident prevention; gas accumulation; gas emission source; gas flow; gas hindering; gas hindering model; gas migration; mine; separated multicomponent lattice Boltzmann method; underground tunnel; Accidents; Bifurcation; Boltzmann equation; Computational fluid dynamics; Computational modeling; Computer simulation; Conference management; Fluid flow; Lattice Boltzmann methods; Technology management; coal mine; computer simulation; gas migration and hindering; multi-component Lattice Boltzmann Method; separated-coupled algorithm;
Conference_Titel :
Information and Computing Science, 2009. ICIC '09. Second International Conference on
Conference_Location :
Manchester
Print_ISBN :
978-0-7695-3634-7
DOI :
10.1109/ICIC.2009.388
